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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-annotation-actions-js-api-js-api</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="../../change/gr-change-actions/gr-change-actions.html">

<test-fixture id="basic">
  <template>
    <span hidden id="annotation-span">
      <label for="annotation-checkbox" id="annotation-label"></label>
      <input is="iron-input" type="checkbox" id="annotation-checkbox" disabled>
    </span>
  </template>
</test-fixture>

<script>
  suite('gr-annotation-actions-js-api tests', () => {
    let annotationActions;
    let sandbox;
    let plugin;

    setup(() => {
      sandbox = sinon.sandbox.create();
      Gerrit.install(p => { plugin = p; }, '0.1',
          'http://test.com/plugins/testplugin/static/test.js');
      annotationActions = plugin.annotationApi();
    });

    teardown(() => {
      annotationActions = null;
      sandbox.restore();
    });

    test('add/get layer', () => {
      const str = 'lorem ipsum blah blah';
      const line = {text: str};
      el = document.createElement('div');
      el.textContent = str;
      const changeNum = 1234;
      const patchNum = 2;
      let testLayerFuncCalled = false;

      const testLayerFunc = context => {
        testLayerFuncCalled = true;
        assert.equal(context.line, line);
        assert.equal(context.changeNum, changeNum);
        assert.equal(context.patchNum, 2);
      };
      annotationActions.addLayer(testLayerFunc);

      const annotationLayer = annotationActions.getLayer(
          '/dummy/path', changeNum, patchNum);

      const lineNumberEl = document.createElement('td');
      annotationLayer.annotate(el, lineNumberEl, line);
      assert.isTrue(testLayerFuncCalled);
    });

    test('add notifier', () => {
      const path1 = '/dummy/path1';
      const path2 = '/dummy/path2';
      const annotationLayer1 = annotationActions.getLayer(path1, 1, 2);
      const annotationLayer2 = annotationActions.getLayer(path2, 1, 2);
      const layer1Spy = sandbox.spy(annotationLayer1, 'notifyListeners');
      const layer2Spy = sandbox.spy(annotationLayer2, 'notifyListeners');

      let notify;
      const notifyFunc = n => {
        notifyFuncCalled = true;
        notify = n;
      };
      annotationActions.addNotifier(notifyFunc);
      assert.isTrue(notifyFuncCalled);

      // Assert that no layers are invoked with a different path.
      notify('/dummy/path3', 0, 10, 'right');
      assert.isFalse(layer1Spy.called);
      assert.isFalse(layer2Spy.called);

      // Assert that only the 1st layer is invoked with path1.
      notify(path1, 0, 10, 'right');
      assert.isTrue(layer1Spy.called);
      assert.isFalse(layer2Spy.called);

      // Reset spies.
      layer1Spy.reset();
      layer2Spy.reset();

      // Assert that only the 2nd layer is invoked with path2.
      notify(path2, 0, 20, 'left');
      assert.isFalse(layer1Spy.called);
      assert.isTrue(layer2Spy.called);
    });

    test('toggle checkbox', () => {
      fakeEl = {content: fixture('basic')};
      const hookStub = {onAttached: sandbox.stub()};
      sandbox.stub(plugin, 'hook').returns(hookStub);

      let checkbox;
      let onAttachedFuncCalled = false;
      const onAttachedFunc = c => {
        checkbox = c;
        onAttachedFuncCalled = true;
      };
      annotationActions.enableToggleCheckbox('test label', onAttachedFunc);
      emulateAttached = () => hookStub.onAttached.callArgWith(0, fakeEl);
      emulateAttached();

      // Assert that onAttachedFunc is called and HTML elements have the
      // expected state.
      assert.isTrue(onAttachedFuncCalled);
      assert.equal(checkbox.id, 'annotation-checkbox');
      assert.isTrue(checkbox.disabled);
      assert.equal(document.getElementById('annotation-label').textContent,
          'test label');
      assert.isFalse(document.getElementById('annotation-span').hidden);

      // Assert that error is shown if we try to enable checkbox again.
      onAttachedFuncCalled = false;
      annotationActions.enableToggleCheckbox('test label2', onAttachedFunc);
      const errorStub = sandbox.stub(
          console, 'error', (msg, err) => undefined);
      emulateAttached();
      assert.isTrue(
          errorStub.calledWith(
              'annotation-span is already enabled. Cannot re-enable.'));
      // Assert that onAttachedFunc is not called and the label has not changed.
      assert.isFalse(onAttachedFuncCalled);
      assert.equal(document.getElementById('annotation-label').textContent,
          'test label');
    });

    test('layer notify listeners', () => {
      const annotationLayer = annotationActions.getLayer(
          '/dummy/path', 1, 2);
      let listenerCalledTimes = 0;
      const startRange = 10;
      const endRange = 20;
      const side = 'right';
      const listener = (st, end, s) => {
        listenerCalledTimes++;
        assert.equal(st, startRange);
        assert.equal(end, endRange);
        assert.equal(s, side);
      };

      // Notify with 0 listeners added.
      annotationLayer.notifyListeners(startRange, endRange, side);
      assert.equal(listenerCalledTimes, 0);

      // Add 1 listener.
      annotationLayer.addListener(listener);
      annotationLayer.notifyListeners(startRange, endRange, side);
      assert.equal(listenerCalledTimes, 1);

      // Add 1 more listener. Total 2 listeners.
      annotationLayer.addListener(listener);
      annotationLayer.notifyListeners(startRange, endRange, side);
      assert.equal(listenerCalledTimes, 3);
    });
  });
</script>
